A Roosevelt man was arrested on Saturday in connection with a fatal assault at Bellmore’s Long Island Rail Road station, authorities said.

Through a joint investigation, Metropolitan Transportation Authority and Nassau County police officials apprehended Niheim Levy, 34, and charged him in the death of a 49-year-old Freeport man.

MTA officials said police were called at 4:50 a.m. on Aug. 24 to the train station, where a man reportedly fell from the platform onto the tracks after possibly suffering a seizure. But police said they soon learned through an investigation that an argument between Levy and the victim had turned into a fight.

Investigators did not comment on the cause or nature of the altercation, nor how the victim fell onto the tracks. Nassau police said on Monday that the victim’s identity was being withheld pending notification of family members. MTA representatives added that the incident did not involve any trains.

MTA and county police jointly arrested Levy and are continuing to investigate the incident together, officials said. “This is a great example of the outstanding working relationship the two agencies share, which led to the expeditious arrest of a homicide suspect,” said Inspector Joseph Martelli, commanding officer of the MTA Police Department’s detectives division.

Levy was charged with felony murder and first-degree robbery, according to the MTA. He was arraigned on Sunday in First District Court in Hempstead.

Chris Munzing, a representative of the Nassau County district attorney’s office, said Levy was due back in court Wednesday. He is represented by an attorney from the Legal Aid Society of Nassau County, which does not comment on cases as a matter of policy.